What should I do if I have a symptom affecting only one leg?

If you notice a potentially serious symptom affecting just one leg, the NHS advises you to call 111.

What are the symptoms of deep vein thrombosis (DVT)?

Key indicators of DVT include a throbbing feeling in one leg, usually in the calf or thigh, and potentially swelling and warmth.

When should I call 999 or go to A&E for blood clot symptoms?

Anyone experiencing symptoms of deep vein thrombosis along with breathlessness and chest pain should call 999 or go to A&E without delay, as this could indicate a pulmonary embolism.

Home / Health / One Leg Symptom? Call 111 for Blood Clot Risk

One Leg Symptom? Call 111 for Blood Clot Risk

22 Feb

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Summary

A single leg symptom may indicate a dangerous blood clot.
Deep vein thrombosis can cause leg pain, swelling, and even be fatal.
NHS advises calling 111 for leg symptoms, 999 for severe signs.

One Leg Symptom? Call 111 for Blood Clot Risk

The NHS is urging the public to call 111 upon noticing a serious symptom in only one leg, as it may signify a blood clot. Such clots, known as deep vein thrombosis (DVT), can obstruct circulation and pose life-threatening risks including strokes and heart attacks.

Symptoms typically involve throbbing pain in the calf or thigh, rarely affecting both legs. Additional signs can include swelling and warmth. If severe symptoms like breathlessness and chest pain manifest, indicating a potential pulmonary embolism, immediate emergency services (999 or A&E) are required.

Several factors elevate the risk of developing blood clots, including age over 60, obesity, smoking, and hormone therapies. Extended periods of immobility, long journeys, pregnancy, and dehydration also increase susceptibility. While some clots form without obvious cause, preventive measures can reduce risk.